Product Description 1. Introduction of sucker rod centralizer The sucker rod centralizers are used to protect sucker rod to reduce wearing. 2. Material 2.1. Plastic: UHMWPE (Ultra High Molecular Weight Polyethylene) 2.2. Rubber: Nitrile 2.3. Nylon: Nylon 6/6 2.4.. 42CrMo 3. Structure 3.1. Pure plastic 3.2. Steel frame, rubber inside and outside 3.3. Nylon6/6 roller and alloy steel body Packaging & Shipping
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